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Home >> Saab >> 2002 >> 9-3 SE, 4D Hatchback, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Modules, Relays & Solenoids >> Relays >> A/C Relay
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A/C Relay

  1. Remove relay from engine compartment fuse/relay block. See Fig 1 or Fig 2 . Measure resistance between A/C relay terminals No. 4 and No. 5. Resistance should be 80-90 ohms at 68°F (20°C). If resistance is not as specified, replace relay. Check for continuity between relay terminals No. 1 and 2. If continuity is not present, go to next step. If continuity is present, replace relay.
  2. Using jumper wires, apply battery voltage to terminal No. 4 and ground to terminal No. 5. See Fig 6. Check for continuity between relay terminals No. 1 and 2. If continuity is not present, replace relay. If continuity is present, inspect associated wiring for short or open circuits. See WIRING DIAGRAMS article. Repair wiring as necessary.
Fig 1: Identifying A/C Relay & Low Speed Cooling Fan Control Relay Location (9-3)
G99F52949Courtesy of SAAB-SCANIA OF AMERICA, INC.
Fig 2: Identifying A/C Relay & High Speed Cooling Fan Relay Location (9-5)
G00011073Courtesy of SAAB-SCANIA OF AMERICA, INC.
Fig 3: Identifying Main, Fuel Pump & Limp-Home Solenoid Relay Locations (9-3)
G99D52947Courtesy of SAAB-SCANIA OF AMERICA, INC.
Fig 4: Identifying Main, Fuel Pump, Limp-Home Solenoid & Air Injection Pump Relay Locations (9-5)
G99E52930Courtesy of SAAB-SCANIA OF AMERICA, INC.
Fig 5: Identifying 5-Pin Cooling Fan Relay Terminals (9-5)
G00075691Courtesy of SAAB-SCANIA OF AMERICA, INC.
Fig 6: Identifying Main, Fuel Pump, A/C, Air Injection Pump & 4-Pin Cooling Fan Relay Terminal Locations
G99G52932Courtesy of SAAB-SCANIA OF AMERICA, INC.
Fig 7: Identifying Limp-home Solenoid Relay Terminals
G99A52936Courtesy of SAAB-SCANIA OF AMERICA, INC.
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